JustinOlson Posted August 22, 2008 Share Posted August 22, 2008 I'm trying to decide on a spring length for my 280z so I can order a coilover kit. I am welding in the TechnoTuningToy camber plates. I'm planning on not sectioning the struts. I'm going with 250 front / 275 rear springs. I plan on running a 25.6" tire front and rear on the street. On the track I plan on running upto a 27" tall tire. I was thinking I'd do a 10" spring on the front and a 8" spring on the rear for more clearance on the back. Would I be ok with these spring lengths? Should I run a 10" rear spring? Regards, Justin Quote Link to comment Share on other sites More sharing options...
Mayolives Posted August 22, 2008 Share Posted August 22, 2008 Justin, I needed to exchange my 8" for 10" after running out of adjustment on the front. My Ground Control plates are welded,struts are sectioned and spring rates are 350/375. Quote Link to comment Share on other sites More sharing options...
johnc Posted August 22, 2008 Share Posted August 22, 2008 I plan on running a 25.6" tire front and rear on the street. On the track I plan on running upto a 27" tall tire. I hope this is for a drag car... Quote Link to comment Share on other sites More sharing options...
JustinOlson Posted August 22, 2008 Author Share Posted August 22, 2008 I hope this is for a drag car... Yep Quote Link to comment Share on other sites More sharing options...
JustinOlson Posted August 22, 2008 Author Share Posted August 22, 2008 Justin,I needed to exchange my 8" for 10" after running out of adjustment on the front. My Ground Control plates are welded,struts are sectioned and spring rates are 350/375. Are you still running 8" in the rear? Quote Link to comment Share on other sites More sharing options...
Mayolives Posted August 23, 2008 Share Posted August 23, 2008 Justin, No, I exchanged all four corners. Quote Link to comment Share on other sites More sharing options...
JustinOlson Posted August 23, 2008 Author Share Posted August 23, 2008 So you'd recommend 10" all around? Just trying to be clear so I don't screw this up Regards, Justin Quote Link to comment Share on other sites More sharing options...
Mayolives Posted August 23, 2008 Share Posted August 23, 2008 Justin, I'm always reluctant to recommend anything. My car sets low and the 10" springs work for me. Good luck! Quote Link to comment Share on other sites More sharing options...
Administrators RTz Posted August 23, 2008 Administrators Share Posted August 23, 2008 Justin, 10's are what I see most often (F&R). I've also used 10's exclusively on my cars. Never did the math but, before installing 8's, I'd want to make sure they didn't coil bind... 6" stroke with an 8" spring sounds like a problem. You're welcome to stop by and have a look at my car. Quote Link to comment Share on other sites More sharing options...
JMortensen Posted August 23, 2008 Share Posted August 23, 2008 10's are what I see most often (F&R). I've also used 10's exclusively on my cars. Never did the math but, before installing 8's, I'd want to make sure they didn't coil bind... 6" stroke with an 8" spring sounds like a problem. Ron nailed it. You need to make sure the coils don't bind. Eibach has their spring specs in their catalog which you can download here: http://eibach.com/eibach/img/ers-catalog-2004.pdf I tried to find this info for Hyperco and had a tough time. Eventually I found it but I can't remember where... Quote Link to comment Share on other sites More sharing options...
johnc Posted August 23, 2008 Share Posted August 23, 2008 I tried to find this info for Hyperco and had a tough time. Eventually I found it but I can't remember where For Hyperco its better to just call and ask. Their techs are very helpful, their web site is less so. Quote Link to comment Share on other sites More sharing options...
Clifton Posted August 25, 2008 Share Posted August 25, 2008 On my street car I run a 8's 250 f, 280 r. The fronts do stack on hard bumps and I will be swapping them to 10's. I run 8's in the rear for tire clearance. I haven't stack the rear yet. Quote Link to comment Share on other sites More sharing options...
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